Low bandgap mid-infrared thermophotovoltaic arrays based on InAs

Krier, Anthony and Yin, Min and Marshall, Andrew and Kesaria, Manoj and Krier, Susan and McDougall, S. and Meredith, W. and Johnson, A.D. and Inskip, J. and Scholes, A. (2015) Low bandgap mid-infrared thermophotovoltaic arrays based on InAs. Infrared Physics and Technology, 73. pp. 126-129. ISSN 1350-4495

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We demonstrate the first low bandgap thermophotovoltaic (TPV) arrays capable of operating with heat sources at temperatures as low as 345 °C, which is the lowest ever reported. The individual array elements are based on narrow band gap InAs/InAs0.61Sb0.13P0.26 photodiode structures. External power conversion efficiency was measured to be ∼3% from a single element at room temperature, using a black body at 950 °C. Both 25-element and 65-element arrays were fabricated and exhibited a TPV response at different source temperatures in the range 345–950 °C suitable for electricity generation from waste heat and other applications.

Item Type:
Journal Article
Journal or Publication Title:
Infrared Physics and Technology
Additional Information:
This is the author’s version of a work that was accepted for publication in Infrared Physics and Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Infrared Physics and Technology, 73, 2015 DOI: 10.1016/j.infrared.2015.09.011
Uncontrolled Keywords:
?? thermo-photovoltaicmid-infraredlow bandgapinaswaste heat recoveryelectronic, optical and magnetic materialsatomic and molecular physics, and opticscondensed matter physics ??
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Deposited On:
03 Nov 2015 19:48
Last Modified:
02 Apr 2024 00:03